2001-2010 Chevy Silverado GMC Sierra 2500 3500HD Front Upper Control Arm
Specifications Part numbers, fitment codes and shipping
- Brand
- K2 Industries
- Speedzone SKU
- K2-4378-CHV-006-SUS
- Manufacturer part number
- K2-4378-CHV-006-SUS
- UPC
- FUCA-CS01-2535-RB
- Category
- Suspension
- Shipping weight
- 2.0 lb
Front Upper Control Arm
Heavy-duty suspension arm engineered for 2500/3500HD trucks. Restores proper front-end geometry and eliminates play caused by worn OEM components. Direct replacement design fits factory mounting points without modification.
Key Features
- Factory-geometry replacement - Maintains OEM suspension angles and ride characteristics without modification
- Ball joint articulation - Full range of motion for steering and suspension travel
- Direct bolt-in design - No drilling, welding, or fab work required
Specs
- Hard panel construction
- Front upper position
- Single piece
Whats Included
- Control arm assembly only
Frequently Asked Questions
Do I need new fasteners to install this?
The arm bolts to factory mounting points, but hardware is not included. You'll need the OEM bolts and castle nuts from your truck — most shops reuse them unless they're stripped or damaged.
Will this fix my steering wander and wandering at highway speeds?
If your wander is caused by a worn upper control arm, yes — a worn ball joint creates slack that destabilizes steering feel and alignment. Replace it and your steering will tighten back up.
Can I install this myself, or do I need an alignment after?
Installation is straightforward for DIY — you'll need a press to swap the ball joint if your old arm's is serviceable, or the new arm comes with one already installed. Get a wheel alignment done after install to dial in your caster and camber.
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
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Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
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